Recaptcha Element
Getting Started | API | Elements | Actions | Validators | Handlers | Configuration Options | About
Table of Contents
1 Recaptcha Element - #recaptcha{}
Overview
The recaptcha element produces a recaptcha element. For more information about recaptchas you may refer to https://developers.google.com/recaptcha/
The element is rendered and evaluated by an external library.
The captcha is processed as follows:
- The user solves the captcha.
- If the solution is wrong the captcha gets refreshed until the user gives up or the solution is correct.
- If the solution is correct the Page:event callback is called.
- The return value of the Page:event callback is evaluated as
follows:
- If the value is 'ok' nothing is done.
- If the return value is 'error', the captcha gets refreshed.
- If the return value is {'error', Msg}, the captcha gets refreshed and the Msg is shown as the error message.
Preparations
Before you can use the the recaptcha element, you have to register at https://www.google.com/recaptcha/admin/create.
After that you have to enter your credentials and link information into /rel/nitrogen/etc/app.config as follows:
[ {nitrogen, [ {recaptcha, [{public_key, "recaptcha_public_key"}, {private_key, "recaptcha_private_key"}, {challenge_url, "http://www.google.com/recaptcha/api/challenge"}, {verify_url, "http://www.google.com/recaptcha/api/verify"}]} ... ]}, ... ].
Usage
#recaptcha { }
Attributes
All attributes are optional
- btn_id - (atom)
- The button's id
- btn_label - (string)
- The button's label
- captcha_opts - (proplist)
- The captcha's options. For more
information visit
https://developers.google.com/recaptcha/docs/customization
custom_theme_widget is not supported
- delegate (Module)
- The module where the event callback gets called
- fail_body (List)
- The fail message. It can be a simple string or an array of element* items
Example
Code in a page module may looks like this:
inner_body() -> [ #recaptcha{id=re_captcha, captcha_opts=[{theme,white}]}, ]. event({recaptcha, ok}) -> case check_user_input() of ok -> wf:remove(re_captcha), ok; error -> {error, "FAIL!"} end. user_input() -> %% your check routine .


New product Forecastingin supply chain planning
Retailing is a significant field of research because of its effect on the economy. The retail supply chain is the process [...]
Read More +Ecole Polytechnique de Tunisie
All are specialists
Silver,Gold & Platinum
Hurry up! Book seat
Our event will be divided into numerous activities all along the day. Bellow, you will find the detailed description of the schedule of our event.
Co-Founder & CEO, Slack
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GM, The Boxstrap
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Co-Founder & CEO, Slack
CEO, Google Inc.
CEO, The Sage Group
GM, The Boxstrap
Co-Founder & CEO, Slack
Although our forum is addressed to diverse and multidisciplinary profils, we choose every year a topic to discuss. Here’a a look at this year’s choice.
Below you'll find answers to the questions we get asked the most about our forum and our school.
The school is located behind Lycée Cailloux in La Marsa Essaada, after the slope that starts from Lycée Essaada.
You can take the TGM to the penultimate station (two stations after Sidi Bou Said), it is located just behind the school. You can also take a shared taxi and take the specified path.
Since its creation in 1994, the Ecole Polytechnique de Tunisie has had for simple vocation the gathering of the elite resulting from the national competition for entry to the engineering schools to shape it into a cenacle of scientific leaders in the field.
Graduates, as stated in this creative text, are intended to become engineers "of design and projects, who are able to improve technical systems, to follow and master the evolutions of advanced technologies, and to assume positions of high responsibility of scientific, technical character, economic and social, in the private and public sectors ”
You can either visit :
our Facebook page : Forum EPT-entreprises
Our Instagram account : forum_ept_entreprises
Email us<EMAIL_ADDRESS>Our forum is destined for students, post graduates, teachers, experts and specialists in all scientific fields.
There are no participation fees. Our event is free and accessible to all those who wish to.
He is a selection of our favorite moments during the last forums. For each year, we make sure to immortalize this event through pictures and videos. You will later on find pictures of this year’s forum in the gallery below !
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Retailing is a significant field of research because of its effect on the economy. The retail supply chain is the process [...]
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***<PHONE_NUMBER>grace05 ***
Q05)
This experiment was probably set up to answer which of the following questions?
(1) What is the mass of the ants?
(2) Will ants go to a dark or light area?
(3) How many kinds of ants are there?
(4) Where do ants get food?


No Title
Introduction
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Header
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to be written
return to main menu
Revised: Tuesday, November 05, 2019 at 14:57:13 PM (EST)


rcc: Routing Configuration Checker
BGP Configuration Tests as of October 2005
- Basic parse errors
- undefined community-lists, as-path lists, etc.
- undefined route maps
- undefined prefix-lists
- undefined distribute-lists
- Tests that concern validity (i.e., could cause bogus
routes to be advertised).
- AS path prepending: is the local AS prepended? if it's
a remote AS, the AS path is technically invalid.
- Next-hop reachability: Is the next-hop of an
iBGP-learned
route reachable via the IGP? That is, if next-hop-self is
not used on eBGP sessions, is the address of the external
session in the IGP?
- Prefix Filtering: Do any eBGP sessions refer to
distribute/prefix
lists that are not defined? Does each eBGP session have a prefix
ACL in either a distribute/prefix list or a route map? Are these
filters up-to-date with the list of bogon prefixes?
- AS Path Filtering: For eBGP sessions that actively
exchange routes to a privately numbered AS, is the private
AS number removed? (either with remove-private-as
or as-override?
- Tests that concern visibility (i.e., could cause a
route to not be advertised, even when a valid path exists)
- Is no synchronization enabled?
- Are there any iBGP-related partitions?
- If there is no hierarchy, is iBGP full-mesh?
- If route reflection is used, is the relationship of
route reflectors to clients acyclic?
- Are route reflectors configured such that a
partition will exist?
- If there is >1 route reflector in a cluster, do all of
the clients for that cluster have a session with
_every_ route reflector?
- Are there any sessions with duplicate router-ids or
loopback IP addresses?
- Are iBGP sessions between router _loopback_ addresses
(as opposed to interface addresses)?
- Are there "dangling" iBGP sessions? i.e., iBGP sessions to
nonexistent IP addresses?
- Are there attempts to originate a prefix with no corresponding
route in the routing table? (i.e., network statements
without route statements or appropriate redistribution.
- Tests that concern determinism.
- Is "deterministic-med" enabled?
- Is "best path compared-routerid" enabled?
- Is next-hop-self used?
- Tests that concern information-flow control.
- Are there "inconsistent" peering export policies?
(ideally, an AS should export routes that look "equally
good" at all peering points with a particular peer.)
- Are there inconsistent peering import policies?
(less important than the previous question, but good to
figure out, since an AS may inadvertently be doing "cold
potato" routing when it doesn't want to)
- Is network inadvertently advertising prefixes between two
peers?
IS-IS Configuration Tests as of October 2005
- Basic parse errors
- Technical errors
- Tests that concern validity (i.e., could cause bogus
routes to be advertised).
- Mesh Group Connectivity: Are all routers in the same mesh group fully connected?
- Routing Level Mismatch: Are routers connected by an adjacency configured for the same routing levels?
- Inter-Area Routing: Are routers in different areas connected by an adjacency configured for Level 2 routing?
- Tests that concern visibility (i.e., could cause a
route to not be advertised, even when a valid path exists)
- Do all routers use the same type of authentication?
- Do all routers use the same auth key, if any?
- Are there any sessions with duplicate router-ids or loopback IP addresses?
- Are IS-IS sessions between router _loopback_ addresses (as opposed to interface addresses)?
- Are there "dangling" IS-IS sessions? i.e., IS-IS sessions to nonexistent IP addresses?
Additional Configuration Tests for OSPF as of October 2005
- Basic parse errors
- Technical errors
- Area Checks
- Existence of backbone area
- Non-backbone areas are connected to backbone
- Stub areas properly configured
- All routers in a given area are properly configured with
correct address
- No dangling OSPF links
Send us suggestions for other constraints
you need checked!


Why
Copying text to the clipboard shouldn't be hard. It shouldn't require dozens of steps to configure or hundreds of KBs to load. But most of all, it shouldn't depend on Flash or any bloated framework.
That's why clipboard.js exists.
Install
You can get it on npm.
npm install clipboard --save
Or bower, too.
bower install clipboard --save
If you're not into package management, just download a ZIP file.
Setup
First, include the script located on the dist
folder or load it from a third-party CDN provider.
<script src="dist/clipboard.min.js"></script>
Now, you need to instantiate it by passing a DOM selector, HTML element, or list of HTML elements.
new Clipboard('.btn');
Internally, we need to fetch all elements that matches with your selector and attach event listeners for each one. But guess what? If you have hundreds of matches, this operation can consume a lot of memory.
For this reason we use event delegation which replaces multiple event listeners with just a single listener. After all, #perfmatters.
Usage
We're living a declarative renaissance, that's why we decided to take advantage of HTML5 data attributes for better usability.
Copy text from another element
A pretty common use case is to copy content from another element. You can do that by adding a data-clipboard-target
attribute in your trigger element.
The value you include on this attribute needs to match another's element selector.
<!-- Target -->
<input id="foo" value="https://github.com/zenorocha/clipboard.js.git">
<!-- Trigger -->
<button class="btn" data-clipboard-target="#foo">
<img src="assets/clippy.svg" alt="Copy to clipboard">
</button>
Cut text from another element
Additionally, you can define a data-clipboard-action
attribute to specify if you want to either copy
or cut
content.
If you omit this attribute, copy
will be used by default.
<!-- Target -->
<textarea id="bar">Mussum ipsum cacilds...</textarea>
<!-- Trigger -->
<button class="btn" data-clipboard-action="cut" data-clipboard-target="#bar">
Cut to clipboard
</button>
As you may expect, the cut
action only works on <input>
or <textarea>
elements.
Copy text from attribute
Truth is, you don't even need another element to copy its content from. You can just include a data-clipboard-text
attribute in your trigger element.
<!-- Trigger -->
<button class="btn" data-clipboard-text="Just because you can doesn't mean you should — clipboard.js">
Copy to clipboard
</button>
Events
There are cases where you'd like to show some user feedback or capture what has been selected after a copy/cut operation.
That's why we fire custom events such as success
and error
for you to listen and implement your custom logic.
var clipboard = new Clipboard('.btn');
clipboard.on('success', function(e) {
console.info('Action:', e.action);
console.info('Text:', e.text);
console.info('Trigger:', e.trigger);
e.clearSelection();
});
clipboard.on('error', function(e) {
console.error('Action:', e.action);
console.error('Trigger:', e.trigger);
});
For a live demonstration, just open your console :)
Advanced Usage
If you don't want to modify your HTML, there's a pretty handy imperative API for you to use. All you need to do is declare a function, do your thing, and return a value.
For instance, if you want to dynamically set a target
, you'll need to return a Node.
new Clipboard('.btn', {
target: function(trigger) {
return trigger.nextElementSibling;
}
});
If you want to dynamically set a text
, you'll return a String.
new Clipboard('.btn', {
text: function(trigger) {
return trigger.getAttribute('aria-label');
}
});
Also, if you are working with single page apps, you may want to manage the lifecycle of the DOM more precisely. Here's how you clean up the events and objects that we create.
var clipboard = new Clipboard('.btn');
clipboard.destroy();
Browser Support
This library relies on both Selection and execCommand APIs. The first one is supported by all browsers while the second one is supported in the following browsers.
-
Chrome 42+
-
Edge 12+
-
Firefox 41+
-
IE 9+
-
Opera 29+
-
Safari 9.1+
The good news is that clipboard.js gracefully degrades if you need to support older browsers (e.g. Safari < 9.1 or Safari Mobile on iOS < 10). All you have to do is show a tooltip saying Copied!
when success
event is called and Press Ctrl+C to copy
when error
event is called because the text is already selected.
Safari 9.1 was released on March 21, 2016 and supportsdocument.execCommand(‘copy’)
anddocument.execCommand(‘cut’)
.


Discover the benefits of data analytics and make better decisions regarding revenue, customer experience, and overall efficiency.
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| < Day Day Up > |
Hack 56 Protect Files with Flags
Ever feel limited when tightening up Unix permissions? Really, there's only so much you can do with r, w, x, s, and t. When you consider the abilities of the superuser account, traditional Unix permissions become moot. That's not very comforting if you're a regular user wishing to protect your own files or an administrator trying to protect the files on a network server from a rootkit. Fortunately, the BSDs support a set of extended permissions known as flags. Depending upon your securelevel, these flags may prevent even the superuser from changing the affected file and its flags. 6.4.1 Preventing File ChangesLet's start by seeing what flags are available. Figure 6-1 summarizes the flags, their meanings, and their usual usage.
Any user can use any flag that starts with u to protect her own files. Let's say you have an important file that you don't want to change inadvertently. That's a candidate for the uchg flag. To turn that flag on, use the chflags (change flags) command: % chflags uchg important_file % ls -lo important_file -rw-r--r-- 1 dru wheel uchg 14 Dec 1 11:13 important_file Use ls -lo to view a file's flags. (I tend to think o was the only letter left. Perhaps a mnemonic would be "Hello, this is why I can't modify that file!" Perhaps not.) Let's see exactly how immutable this file is now. I'll start by opening the file in vi, adding a line, and trying to save my changes: Read-only file, not written; use ! to override. Okay, I'll use wq! instead: Error: important_file: Operation not permitted. Looks like I can no longer make changes to my own file. I'll receive the same results even if I try as the superuser. Next, I'll try to use echo to add some lines to that file: % echo "test string" >> important_file important_file: Operation not permitted. Finally, I'll try moving, deleting, and copying that file: % mv important_file test mv: rename important_file to test: Operation not permitted % rm important_file override rw-r--r-- dru/wheel uchg for important_file? y rm: important_file: Operation not permitted % cp important_file test % Notice an important difference between the mv and rm commands and the cp command. Since mv and rm require a change to the original file itself, they are prevented by that unchangeable flag. However, the cp command doesn't try to change the original file; it simply creates a new file with the same contents. However, if you try ls -lo on that new file, the uchg flag will not be set. This is because new files inherit permissions and flags from the parent directory. (Okay, that's not the whole story. See man umask for more gory details.) 6.4.2 Watch Your DirectoriesWhat do you think will happen if you place all of your important files in a directory and recursively set uchg on that directory? % mkdir important_stuff % cp resume important_stuff/ % chflags -R important_stuff/ % ls -lo important_stuff/ drwxr-xr-x 2 dru wheel uchg 512 Dec 1 11:23 ./ drwxr-xr-x 34 dru wheel - 3072 Dec 1 11:36 ../ -rw-r--r-- 1 dru wheel uchg 14 Dec 1 11:13 resume So far so good. That file inherited the uchg flag from the directory, so it is now protected from changes. What if I try to add a new file to that directory? % cp coverletter important_stuff cp: important_stuff/coverletter: Operation not permitted Because the directory itself is not allowed to change, I can't add or remove any files from the directory. If that's what you want, great. If not, keep that in mind when playing with directory flags. What if you change your mind and really do want to change a file? If you own the file, you can unset the flag by repeating the chflags command with the no word. For example: % chflags nouchg resume will allow me to make edits to my résumé. However, I won't be able to delete it from that protected directory unless I also use the nouchg flag on the important_stuff directory. 6.4.3 Preventing Some Changes and Allowing OthersSometimes, the uchg flag is a bit too drastic. For example, if you want to be able to edit a file but not inadvertently delete that file, use this flag instead: % chflags uunlnk thesis % I can now edit that file to my heart's content. However, if I try to move or delete that file, I'll receive those Operation not permitted error messages again. The uappnd flag is more interesting. It allows you to append changes to a file but prevents you from modifying the existing contents. This might be useful for a blog: % chflags uappnd myblog % Then again, it might not. echoing comments to the end of the file works nicely. However, opening it in an editor does not. Note that this flag also prevents you from moving or deleting the file. 6.4.4 Log ProtectionLet's move on to the rest of the flags, which can be managed only by the superuser. sappnd, schg, and sunlnk work exactly the same as their u equivalents. So, think s for superuser and u for user. The append flag was a bit weird for a regular user, but it is ideal for protecting the system logs. One of the first things an intruder will do after breaking into a system is to cover up his tracks by changing or deleting logs. This command will thwart those attempts: # chflags -R sappnd /var/log Now is a good time to mention a security truth: security is a myth. In reality, security is a process of making things more inconvenient in the hopes that a miscreant will go elsewhere. Remember, though, that inconvenience doesn't just affect the bad guys; it also affects you. That command seems ideal because it allows logs to be appended to but not modified or deleted. That's great if you live in the world of unlimited disk space. Of course, it also just broke newsyslog, and you've just delegated yourself the joys of manual log rotation. There's one other thing you need to consider when you start playing with the superuser flags. If your securelevel is set to 0 or -1, the superuser can unset any flag by adding no to it. If your attacker has heard of flags before and has managed to gain access to the superuser account, all of your flag setting was for naught. Having said that, suppose you're hardening a server and want to protect the logs. Your securelevel is set at 1 or higher, and you plan on using that previous chflags command. Since you're now responsible for log rotation, you might as well start by taking stock of the contents of /var/log before turning on that sappnd flag. Remove any unnecessary logs now, before setting the flag. Next, edit /etc/crontab and comment the newsyslog line so it looks like this: # Rotate log files every hour, if necessary. #0 * * * * root newsyslog Comment out any lines in /etc/syslog.conf that refer to logs you removed. You should also consider using something like the following script to warn you if a partition is filling up: #!usr/local/bin/bash # checkfreespace.sh # check that a device has sufficient free space # thanks to David Lents and Arnold Robbins for awk/gawk/nawk suggestions # set the following variables as necessary PARTITION="/var/log" THRESHOLD="80" USED=$( eval "df | awk -- '\$6 = = ENVIRON[\"PARTITION\"] { printf( \"%0.d\", \$5 ) }'" ); if [ "$USED" -ge $THRESHOLD ] then echo "Used space of $USED above $THRESHOLD on $PARTITION" else # disable this if running through cron echo "Enough free space" fi If you schedule this program through cron, it will mail any output to the user owning the cron job. Edit the two variables at the top of the script to change the partition to scan and the threshold above which the script will warn. With the variables set as shown, the script will warn if /var/log is more than 80% full. Remember, once you disable newsyslog, it becomes your responsibility to monitor disk space in /var/log. You won't be able to compress or delete log files unless the superuser temporarily unsets the sappnd flag. This can be a real pain if your securelevel is 1 or higher, as the system first has to be dropped down to single-user mode. This usually isn't an option on busy systems as it will disconnect all current connections. Carefully consider the size of /var/log and how often the system realistically can be put into single-user mode before setting this flag. 6.4.5 Protecting BinariesWhen a system is compromised, the attacker may install a rootkit that will try to change your system's binaries. For example, it might replace ps with a version that doesn't display the rootkit's processes. Or, it might replace a commonly used utility with another program that executes something nastier than expected. [Hack #58] shows how to create your own file integrity checking program that will alert you if any of your binaries or other important files are changed. An additional layer of protection is to use chflags to prevent those files from being changed in the first place. Usually, the schg flag is used to prevent any modifications. Useful candidates for this flag are:
Again, evaluate your particular scenario before implementing this flag. The protection provided by this flag usually far outweighs the inconvenience. The only time the contents of /usr/bin or /usr/sbin should change is when you upgrade the operating system or rebuild your world. Doing that requires a reboot anyway, so dropping to single-user mode to unset schg shouldn't be a problem. How often do you change your configuration files in /etc? If you typically configure a system only when it is installed and rarely make changes afterward, protect your configurations with schg. However, keep in mind that a rare configuration change may require you to drop all connections in order to implement it. Also, if you need to add more users to your system, remember to remove that flag from /etc/passwd, /etc/master.passwd, and /etc/group first. Things are a bit more problematic for a system running installed applications. Most ports install their binaries into /usr/local/bin or /usr/X11R6/bin. If you set the schg flag on those directories, you won't be able to patch or upgrade those binaries unless you temporarily unset the flag. You'll have to balance your need to keep your server up and running with the protection you gain from the schg flag and how often you have to patch a particular binary. 6.4.6 Controlling BackupsThe last two flags, arch and nodump, affect backups. The superuser can ensure a particular file or directory will always be backed up, regardless of whether the contents have been altered, by setting the arch flag. Similarly, when using dump to back up an entire filesystem, the superuser can specify which portions of that filesystem will not be included by setting the nodump flag. 6.4.7 See Also
|
| < Day Day Up > |


{% extends "base.html" %} {% import 'bootstrap/wtf.html' as wtf %} {% block app_content %}
This is a demo for PNEUMONIA image classification using CNN by Tensorflow Keras. I used a Custom VGG16 pretrained model available on my GITHUB This model is trained on a small dataset available on Kaggle Given an input image it classifier it into either Normal or Pneumonia class The code is available in this Github repo.
The uploaded image and the classification results are shown below.


Triangle JS Meetup, stardate 211609.20
Patternfly is an open source community of designers and developers.
We think the DOM is the original platform and have started exploring web components in our framework patterns.
"Web components won't work with framework X..."
"I have to use Shadow DOM..."
"Web components require me to change my build..."
"Web components aren't compatible with JSX..."
"Web components can't be rendered server side..."
https://pimterry.github.io/server-components
Browser APIs to define new HTML elements
The <template> tag now allows documents to contain inert chunks of DOM
Encapsulated DOM and styling
Declarative methods of importing HTML documents into other documents
Define new elements with the customElements global.
/* my-element.js */ class MyElement extends HTMLElement { // This gets called when the HTML parser sees your tag constructor() { super(); // always call super() first in the ctor. this.msg = 'Hello, World!'; } // Called when your element is inserted in the DOM or // immediately after the constructor if it’s already in the DOM connectedCallback() { this.innerHTML = `${this.msg}
`; } } // This registers your new tag and associates it with your class window.customElements.define('my-element', MyElement);
v0 Lifecycle
| Callback | Called when |
|---|---|
| createdCallback | an instance of the element is created |
| attachedCallback | an instance was inserted into the document |
| detachedCallback | an instance was removed from the document |
| attributeChangedCallback(attrName, oldVal, newVal) | an attribute was added, removed, or updated |
v1 Lifecycle
| Callback | Called when |
|---|---|
| constructor | an instance of the element is created or upgraded. |
| connectedCallback | called every time the element is inserted into the DOM. |
| disconnectedCallback | called every time the element is removed from the DOM. |
| attributeChangedCallback(attrName, oldVal, newVal) | an attribute was added, removed, or updated. note: only attributes listed in the observedAttributes property will receive this callback. |
| adoptedCallback | the custom element has been moved into a new document (e.g. someone called document.adoptNode(el)). |
You can also extend native HTML elements. The primary benefit is to gain all of their features (things like DOM properties, methods, and accessibility features).
class FancyButton extends HTMLButtonElement { constructor() { super(); this.addEventListener('click', e => this.drawRipple(e.offsetX, e.offsetY)); } // Material design ripple animation. drawRipple(x, y) { let div = document.createElement('div'); div.classList.add('ripple'); this.appendChild(div); div.style.top = `${y - div.clientHeight/2}px`; div.style.left = `${x - div.clientWidth/2}px`; div.style.backgroundColor = 'currentColor'; div.classList.add('run'); div.addEventListener('transitionend', e => div.remove()); } } customElements.define('fancy-button', FancyButton, {extends: 'button'});
Consumers can utilize the element by declaring it in their HTML:
<button is="fancy-button" disabled>Fancy button!</button>
or by creating an instance in Javascript:
let button = document.createElement('button', {is: 'fancy-button'}); button.textContent = 'Fancy button!'; button.disabled = true; document.body.appendChild(button);
or using the new operator:
let button = new FancyButton(); button.textContent = 'Fancy button!'; button.disabled = true; document.body.appendChild(button);
The <template> element allows you to declare fragments of DOM which are parsed, inert at page load, and can be activated later at runtime.
<template id="element-template">
I'm in Shadow DOM. My markup was stamped from a <template>.
 </template >
A new way to encapsulate styles for your custom element, giving you functional boundaries between DOM subtrees.
(function(){ let elementTemplate = doc.querySelector('.element-template'); class MyElement extends HTMLElement { attachedCallback() { /* Create a new Shadow Root for your element */ this.createShadowRoot(); /* append your element's template */ this.shadowRoot.appendChild(document.importNode(elementTemplate.content, true)); } } })();
Provide a new means to include HTML documents inside other documents. Now you can load your component's HTML, JS, and CSS in a single file.
 <link rel="import" href="/path/to/imports/my-element.html">
Here's a few places...
ReactReactive Elements |
AureliaAurelia |
PolymerPolymer Elements |
Onsen UIOnsen Elements |
X-TagsX-Tags Elements |
BosonicBosonic Elements |
Frameworks often provide opinionated solutions for common problems. Most of the time frameworks will save you a great deal of effort.
One of the best parts about web components is their inherent ability to be extended and reused in a variety of situations. Web component flexibility and interoperability has been a key area of research for us...
Let's take a look under the hood and see if we can't mimic these frameworks in our own components with some good old fashioned javascript.
Writing your own components makes a good deal of sense if you find yourself doing the following:
Javascript's CustomEvent interface can be used to pass messages from your custom element to the outside world.
// fires when our element is attached to the DOM attachedCallback() { this.addEventListener('click', (e) => { var eventObj = new CustomEvent('selected', { detail: this.username }); // fire custom event this.dispatchEvent(eventObj); }); }
To emulate two way binding in your component, simply use Object.defineProperty.
/* Creates a property for two-way binding */ bindProperty(obj, property, domElem, domProp) { Object.defineProperty(obj, property, { get: function() { return domElem[domProp]; }, set: function(newValue) { domElem[domProp] = newValue; }, configurable: true }); }
Polymer data binding (under the hood)
Defines a one-to-many dependency between objects so that when one object changes state, all dependents are notified and updated automatically.
function observable(value) { var listeners = []; function notify(newValue) { listeners.forEach(function(listener){ listener(newValue); }); } function accessor(newValue) { if (arguments.length && newValue !== value) { value = newValue; notify(newValue); } return value; } accessor.subscribe = function(listener) { listeners.push(listener); }; return accessor; }
var a = observable(3), b = observable(2); var c = observable(a() + b()); a.subscribe(function(){ c(a() + b()); }); b.subscribe(function(){ c(a() + b()); }); console.log(c()); // 5 a(10); console.log(c()); // 12 b(7); console.log(c()); // 17
Angular2 Observers/EventEmitters in RxJS and React Observers in Flux (observers also used in Redux)
Easily observe changes in your custom element's DOM.
var observer = new MutationObserver(function(mutations) { mutations.forEach(function(mutation) { if (mutation.type === 'childList') { /* handle child mutations */ } if (mutation.type === 'attributes') { /* handle attribute mutations */ } if (mutation.type === 'characterData') { /* handle data mutations */ } }); }); /* instantiate observer on your custom element (this) or a nested element */ observer.observe(this, { attributes: true, childList: true, characterData: true });
Mutation Observers replace the need for Mutation Events and deliver mutations in batches asynchronously.
Mutation observer polyfill for IE9+ (now included in webcomponents.js):
https://github.com/Polymer/MutationObserversReact uses a very efficient "diffing" algorithm for mutating the DOM only when necessary. It creates a lightweight tree from Javascript objects that mimic a DOM tree.
There are libraries which can help if you want to imitate Virtual DOM in custom elements.
class CurrentTime extends HTMLElement {
constructor() {
super();
// Bind render to this instance so we
// can call it from within our template
this.render = this.render.bind(this);
this.render();
}
render() {
// Note the diff.html tagged template string
diff.innerHTML(this, diff.html`
<button onclick="${this.render}">
Show current unix time
</button>
${Date.now()}
`);
}
}
A library built on top the W3C web component standards which aids in rendering and focuses on maintaining a small footprint.
Traditional Virtual DOM:
A good checklist to review before submitting your web component...
Patternfly Pf-Tabs Component:
Beer JS app:
Requires the use of HTTP/2 Server and Server Push
See the Polymer Shop App. Link to app demo.
If you can't use an HTTP/2 enabled server, look to vulcanize your component assets.
The Patternfly team would like to thank...
We'd be happy for you to join our Patternfly open source community.
And just remember...


Version 1.4 is available
Was certainty sing remaining along how dare dad apply discover only. Settled opinion how enjoy so shy joy greater one. No properly day fat surprise and interest nor adapted replying she love. Bore tall nay too into many time expenses . Doubtful for answered yet less indulged margaret her post shutters together. Ladies many wholly around whence.


Complex items
The slate has kinds of item: simple items, which are those supplied by the Tk canvas, and complex items, which are items composed out of other items. The ComplexItem item type is the generic complex item type, and can be used to dynamically create arbitrary items.
For example, we can create a new complex item by doing this:
You can't see the item, because it doesn't actually contain anything yet. The coordinates given the region to be occupied by the item so that methods such as coords will operate correctly. package require slate.demo set slate [::demo::newslate "A complex item example"] set citem [$slate create ComplexItem 50 50 100 100]Now let's add some items to it. For the sake of example, let's add a pair of lines and an oval:
This new item will respond to slate operations just like the other items we have seen so far in this tutorial. For example, we can move it: $slate createchild $citem line 50 50 100 100 $slate createchild $citem line 50 100 100 50 $slate createchild $citem oval 60 60 90 90 -fill green $slate move $citem 10 10We can change its coordinates
$slate coords $citem 100 100 200 170To prove a point, let's add some grab-handles to the item and make it moveable, so you can fiddle with it yourself:
You can also define your own item types, as described in a later section of this tutorial. $slate addtag moveable withtag $citem $slate grapple $citem


;|
OP_RedefTitle_1.1.lsp
Version History
1.1 July 15, 2016 Initial Public Release
1.0 2009 Initial Release
Requires predefined list of blocks.
Dependencies: none
Usage: RedefTitle
Arguments: none
Returns: prompt
Copyright © 2005-2016 by Richard Lawrence
Written permission must be obtained to copy, modify, and distribute
this software. Permission to use this software for any purpose and
without fee is hereby granted, provided that the above copyright
notice appears in all copies and that both the copyright notice and
the limited warranty and restricted rights notice below appear in
all supporting documentation.
  THERE IS NO WARRANTY THAT THE OPERATION OF THE
PROGRAM WILL BE UNINTERRUPTED OR ERROR FREE. USAGE OF THIS PROGRAM
IS AT YOUR OWN RISK.
|;
(defun c:redeftitle (/ cmde sFolder lBlocks)
(setq cmde (getvar "cmdecho")
;;_ Assign base folder path for blocks
sFolder "U:\\Sheets\\"
)
(setvar "cmdecho" 0)
;;_ Define possible titleblock drawing names (exclude the file extension)
(setq lBlocks (list "TTLB-L-MS-11x17" "TTLB-L-MS-18x24"
"TTLB-L-MS-22x34" "TTLB-L-MS-24x36"
"TTLB-L-MS-30x42" "TTLB-P-MS-LEGAL"
)
)
;;_ Provide list of block names to query
(foreach n lBlocks
(progn
(if (tblsearch "BLOCK" n)
(progn
;;_ If drawing is set as an STB based plotting,
(if (and (= (getvar "PSTYLEMODE") 1)
(findfile (strcat sFolder n "-STB.dwg"))
)
;;_ then append the STB version of the block,
(command "insert" (strcat n "=" sFolder n "-STB.dwg") nil)
;;_ else use the CTB version.
(command "insert" (strcat n "=" sFolder n) nil)
)
;;_ Synchronize the attributes for this block.
(command "attsync" "n" n)
)
)
)
)
;;_ Reset cmdecho system variable
(setvar "cmdecho" cmde)
(prompt "\nTitleblock redefined. ")
(princ)
)
Select allDownload


---
layout: page
title: Password
permalink: /password/
manifest: manifest.json
---
This web tool provides a way to securely have a different password for every service you use while at the same time allowing you to only remember one password. Simply put in an identifier (which need not be stored securely) along with a master password common to all other passwords and this page will combine those together using a cryptographic hash function to produce a unique password (since it is determined both by the identifier and the master password).
Depending on the site you are visiting, requirements might change so feel free to modify (and hopefully store the modifications along with the identifier) to pass the password requirements. The passwords generated by this site are incredibly strong, so that won't compromise the security if you say need to put in an @ symbol to have a special character. Generally, though, you can just generate a password to suit your requirements using the length field and the option box for type of password.
The default, special characters, will generate a password with all standard ASCII characters except for spaces. Alphanumeric will use upper and lowercase letters as well as numbers. Numbers will generate a password as a decimal number and hex will output the same number in hexidecimal (characters a-f and 0-9).
While no web tool can be 100% secure, this tool is run entirely through Javascript run on your computer (the server simply renders static content) so your password never leaves your browser. Always look for the lock left of the URL to ensure you are visiting the site over https!
If you find any bugs, let me know or submit a pull request to slaymaker1907.github.io.


User Name:
Password:
Log In
OR
Register a New Account
Credits for Graphics, Maps and Everything Creative
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This page reloads automatically in response to editing its resources.
It works on repl.it too! Check this out...


The basics of the Web and HTML
1. The basics of the Web
World Wide Web
The World Wide Web is a collection of HTML documents. HTML is the basis for almost every webpage and the links between the pages called hyperlinks.
Major pieces of the web:
- HTTP : The main protocol of the web
- Servers : Computers that host the files that make up the web
- Internet : The world's largest computer network
- Brower : A program that runs on your computer to display files found on the web
2. HTML
HTML stands for HyperText Markup Language
HTML is made up of:
- text content
- markup
- references to other documents
- links to other pages
HTML Markup:
HTML markup is made up of things called tags. An HTML tag is always contained within angled brackets(< >). Most tags have an opening tag and closing tag .Some tags do not require a closing tag called "void" tag.
* b- Tag: Anything that appers inside the b-tag appears bold .
* em- Tag: This tag makes things italics .
HTML Attributes:
Attribute is a property of an HTML element*.
* Element refers to everything within a set of opening and closing tags.
HTML tags can have attributes that determine the behaviour of the tag.
An example of a tag that uses attributes is the anchor tag : href
Another tag that uses attributes is the image tag: src
I am going to learn HTML. Here, the 'HTML' text will appear in blue and underlined indicaInting that the text is hyperlinked, i.e. by clicking on the text, the user will be taken to www.udacity.com
Here, the 'src' attribute indicates the source of the image, i.e. website address, and the 'alt' attribute indicates the text that should appear in case the image cannot be accessed.
Whitespace:
All spaces in text, whitespaces, are largely ignored in HTML.To force out HTML to have multiple lines we can use break tag and paragraph tag.
Inline vs. block tags
- Inline : Shows texts inline.
- Block : Elements are in an invisible box.


DATE |
COMPANY |
PROFILE |
|---|---|---|
01.07.2020 - 01.08.2020 |
SRI VASANTHA INDUSTRIES |
PRODUCTION ENGINEER |
29.07.2020 - 14.08.2020 |
GALEXON ENGINEERING INDUSTRIES |
DESIGN ENGINEER INTERN |


The Luigi team has been hard at work even as the summer holiday season begins. We have prepared a brand new Luigi v1.3.0 release with some exciting features.
Global search
This new feature has the potential to improve your Luigi application dramatically. You can now add a search toggle to your app which is displayed in the top navigation. Full functionality is included with the Luigi default settings, but you can also create a custom search that fits your needs exactly. We encourage you to take a look at the full documentation and provided example to learn more.
Fundamental Styles update
With Luigi version v1.3.0, the new v0.10.0 of Fundamental Library Styles were included. As a result, there were breaking changes to the Luigi side navigation. You can see the updated layout here.
Support for authorization code flow with PKCE
If you use OIDC for authorization, you can now authenticate using PKCE. You can see the full changes in the code here. Fun fact: this issue was fixed by an external developer. We'd like to remind you that Luigi is 100% open source and we love receiving contributions and suggestions on GitHub. If you have any ideas, don't hesitate to participate.
Bugfixes
For a full list of bugfixes in this release, see our changelog.
Get the latest from Luigi
Always stay up to date with our growing collection of news, innvovations and video tutorials.


Bob's Garage Door was started in 1968 by Bob and Jaenette Dickeson and has operated from its current location since 1977. The small family operation has consistently grown by providing high quality products and services at a fair price and standing behind the work they do. Their son, Tod, took over the business in May of 1995, after finishing school at the University of Idaho. Tod and his wife Jennifer have three children; Tanner, who is currently serving in the Air Force and recently married, a U of I freshman daughter, Jordan, and a junior high daughter, Julia.
The family is very active with local organizations such as the Boys and Girls Club, Jackson's Pay it Forward Foundation, and Community of Call. Jennifer is on the board of directors at the Boys and Girls and Jackson's Pay It Forward Foundation. Tod serves on the Board of Directors for Potlatch Number 1 Federal Credit Union. The family is proud to be involved with this community and enjoy being a part of a great organizations that give back.
1416 Ripon Ave
Lewiston ID, 83501